Abstract
The performance of prototypes for the ALICE electromagnetic sampling calorimeter has been studied in test beam measurements at FNAL and CERN. A 4 × 4 array of final design modules showed an energy resolution of about 11 % / sqrt(E (GeV)) ⊕ 1.7 % with a uniformity of the response to electrons of 1% and a good linearity in the energy range from 10 to 100 GeV. The electromagnetic shower position resolution was found to be described by 1.5 mm ⊕ 5.3 mm / sqrt(E (GeV)). For an electron identification efficiency of 90% a hadron rejection factor of > 600 was obtained.
Original language | English (US) |
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Pages (from-to) | 6-13 |
Number of pages | 8 |
Journal | Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |
Volume | 615 |
Issue number | 1 |
DOIs | |
State | Published - Mar 21 2010 |
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
- Instrumentation